Dog Doesn't Want To Risk His Survival At The Cost Of The Other Dog

Throughout my whole I life I have been told that I need to give the best of me in order to succeed. But why the best of me? Isn't just the normal amount of energy enough? NO.
Why you ask? Because all living things are naturally competitive but mostly with their kind because they need the same tools and resources such as mates, living space, and food to survive. Our current key to survival is money. That's why everybody wants to be the best in what they do. Because of this uring for money, we have created corruption and distrust.

Ok so that's it for us, but as animals,why don't we simply kill each other? According to The Selfish Gene it's because it wastes too much energy and time to kill one of your own. But wait, weren’t we talking about the selfish here?

Yes, we do it so the species won’t be weak in front of others so the species gene can survive.
So I guess it’s not dog eat dog after all.